You have a single server that has Exchange Server 2007 with Service Pack 1 (SP1) installed. This server also has the following server roles installed: Hub Transport, Client Access, and Mailbox. Your company address space is contoso.com. Users report that they are unable to send e-mail messages outside the company. However, users are able to send e-mail messages inside the company. You need to ensure that all users are able to send e-mail messages outside the company. What should you do?

A.
Create a Send connector with a * address space.

B.
Create a Send connector with a contoso.com address space.

C.
Create a Foreign connector with a contoso.com address space.

D.
Add contoso.com as an accepted domain.